package com.zcl.Thread.t15;

/**
 * @Description:
 * @author: zcl
 * @date: 2022/3/10  17:12
 *
 * 线程通信应用: 生产者消费者问题
 *
 */
class Clerk{
    private int productCount = 0;

    public synchronized void produceProduct() {// 生产产品
        if (productCount< 20){
            productCount++;
            System.out.println(Thread.currentThread().getName()+ ":开始生产第 "+productCount+" 个产品");
            notify();
        }else {
            try {
                wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public synchronized void consumeProduct() {// 消费产品
        if (productCount > 0){
            System.out.println(Thread.currentThread().getName()+ ":开始消费第 "+productCount+" 个产品");
            productCount--;
            notify();
        }else {
            try {
                wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

class Producer extends Thread{// 生产者
    private Clerk clerk;

    public Producer(Clerk clerk){
        this.clerk = clerk;
    }

    @Override
    public void run() {
        System.out.println(Thread.currentThread().getName()+ ": 开始生产产品......");
        while (true){
            try {
                Thread.sleep(10);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            clerk.produceProduct();
        }
    }
}

class Consumer extends Thread{// 消费者
    private Clerk clerk;

    public Consumer(Clerk clerk){
        this.clerk = clerk;
    }

    @Override
    public void run() {
        System.out.println(Thread.currentThread().getName()+ ": 开始消费产品......");
        while (true){
            try {
                Thread.sleep(10);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            clerk.consumeProduct();
        }
    }
}


public class ProductConsumerTest {
    public static void main(String[] args) {
        Clerk clerk = new Clerk();
        Producer p1 = new Producer(clerk);
        p1.setName("生产者1");
        Consumer c1 = new Consumer(clerk);
        c1.setName("消费者1");

        p1.start();
        c1.start();

    }
}
